Depletion of which gas in the atmosphere can lead to an increased incidence of skin cancers?

Explanation

Ozone layer or shield is present in stratosphere. It functions as a shield against strong UV radiations coming from sun. UV radiations are very harmful and may cause mutations in living organisms. Thinning of ozone layer increases the amount of UV radiations reaching the earth. The increase in UV radiation reaching the Earth's surface due to ozone layer depletion has raised concerns about a higher risk of skin cancers. Prolonged and frequent exposure to UV radiation, especially without proper sun protection, can increase the risk of skin cancers, including basal cell carcinoma, squamous cell carcinoma, and melanoma.